I have some AFR 230v2's and running Yella Terra rockers. I have ground down all the boss's and removed the baffles. I then ran them and still saw some makes where the rockers were hitting. I then did some more grinding all along the top section, above the pushrod side, and just now made some runs up to 6800 rpm's and they still have a few marks were the pushrod side of the rockers are hitting. And this is also running the Yella Terra thicker gaskets. I must have some freak valve covers or something.

How much grinding did you guys have to do to make sure they don't hit? I think I'm hitting at mostly high rpm's. I had to use a .079 shim to get a good wipe pattern so I know that raised them up a bit.

For the ppl that just bought raised aftermarket valve covers, which one's did you go with? I'm kinda on a budget after my engine build so I can't afford the really nice expensive ones. Anyone run the Holley valve covers? They look nice but I'm not sure how much more raised they are.

 

http://www.summitracing.com/parts/UPI-2111/

Another alternative.

 

Do you have the old style Yellas? They had the thicker/wider ends on the pushrod side.
I ran into this and ended up buying the new ultra-lites with less mass. It solved two problems..less mass and no more contact with the valvecovers.
I know you're on a budget and hope that Darkman's suggestion works for you.

 

Here's another...$10 cheaper. Don't know about shipping cost, though.
http://motors.shop.ebay.com/i.html?_...rs+ls1+ls6+ls2

 

One more...$107.99 + ship
http://speed-eng.com/store/umi-ls1ls...rs-p-8789.html

 

Tall valve covers maybe?

http://www.summitracing.com/parts/SUM-440341/

 

I had a similar issue and need to grind off the bosses on the coil mount holes to gain more clearance. Then I seal the coil bolts to keep it from leaking. I couldn't clear until I did this. My rockers have a rather thick shim though.

 

Running the ultra lites. I'm going to try some more grinding and if that doesn't work then I will probably get the spacers.

 

I've got a set of 1" spacers I'll sell you for a lot less than that if you decide to go that route. PM me if interested...

 

I think I may have it ground down enough. Took a ride and no signs of it hitting. I will check again in a few days to make sure.